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  3. Our Certification System

Our Certification System

Our certification system header

At UNIFI®, makers of REPREVE®, we believe provable claims benefit everyone — from suppliers and brands to retailers and consumers.

We educate partners on the impact of our products, backed by trusted certifications.

Our proprietary FiberPrint® and U-TRUST® technologies offer verified traceability and product authentication, ensuring claims can be proven, not just stated. Because transparency builds trust, and trusted data drives meaningful change.

Our Certification System

FiberPrint

U-TRUST is powered by our unique FiberPrint tracer technology, allowing us to test fibers at any point in the supply chain — from resin to yarn to fabric — to verify the use of REPREVE.

U-TRUST

Sustainable and transparent, by design. We offer U-TRUST verification to products made with REPREVE, in order to certify recycled content claims.

Tall card chips petri dish

Our traceable fingerprint

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Tall card blue yarn

Trust what you get from us

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We believe an informed consumer is an empowered consumer.

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Contact Us
  • Our Brands
  • REPREVE®
  • REPREVE® Nylon
  • REPREVE Our Ocean®
  • REPREVE ReCirculate™
  • REPREVE Takeback™
  • ThermaLoop™ Insulation
  • REPREVE Products
  • Circular Nylon
  • Circular Polyester
  • Recycled Polyester
  • Recycled Resin
  • REPREVE® Platform
  • Technologies
  • Tech Yarns
  • FiberPrint® Tracer
  • REPREVE in Action
  • Brand Network
  • Case Studies
  • Industries
  • Sustainability
  • Champions of Sustainability
  • Our Impact
  • Third-Party Certifications
  • LCA Data
  • Resources
  • Marketing Toolkit
  • U-TRUST® Certification
  • Our Story

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